Stereo Amplifier SA-420

Pioneer Corporation; Tokyo

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  • Year
  • 1981
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 321860

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 42 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier SA-420 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 94 x 267 mm / 16.5 x 3.7 x 10.5 inch
  • Notes

  • A stereo hi-fi integrated amplifier with output power of 21 watts per channel into 8 ohms. RCA phono sockets for input Phono, Tuner and Aux/Video, RCA phono Rec/Play sockets for Tape/Adaptor, RCA phono output sockets for headphones, terminals for 2 pairs of loudspeakers and 3 AC outlets. Rotary Bass and Treble tone controls, push button switches for Loudspeakers (A,B), Tape/Adaptor and Loudness and a jack for headphones. 

    Specification  
    Power Output Continuous power output of 21 watts
    per channel min. into 8Ω
    from 30 Hz to 20,000 Hz
    with no more than 0.1% THD
    Total Harmonic Distortion
    (30Hz to 20,000Hz, 8Ω, from AUX)
    10 watts per channel power output    		 No more than 0.05%
    Intermodulation Distortion
    (8Ω, from AUX)    		  
      Continuous rated power output
     10 watts per channel power output    		 No more than 0.2%
    No more than 0.08%
    Damping Factor (20Hz-20,000Hz, 8Ω) 30
    Input (Sensitivity/Impedance)
     
     
         		 PHONO 2.5mV/50 kΩ
    TUNER 150mV/50 kΩ
    AUX   150mV/50 kΩ
    TAPE PLAY/ADAPTOR 150mV/50 kΩ
    Output Level  
      TAPE REC/ADAPTOR
      Speaker    		 150mV
    A, B, OFF
    Frequency Response  
      PHONO (RIAA Equalization)
      TUNER, AUX, TAPE PLAY/ADAPTOR    		 30Hz - 15,000Hz ±0.5dB
    10Hz - 60,000Hz ±3dB
    Hum and Noise
    (IHF, short-circuited, A network)    		 PHONO  72dB
    TUNER, AUX, TAPE PLAY/ADAPTOR  97dB

    Versions/Power requirements

    KU U.S.A. model  120V only
    YP Australia model 240V only
    HE Europe model  220V and 240V (Internally switchable)
    HB United Kingdom model 220V and 240V (Internally switchable)
    S General export model 110V, 120V, 220V and 240V (voltage selector)

    Power consumption :  60 watts

  • Net weight (2.2 lb = 1 kg)
  • 4.6 kg / 10 lb 2.1 oz (10.132 lb)
  • Mentioned in
  • -- Original prospect or advert (1981-82 Pioneer Hi-Fi Stereo catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual SA-420 dated Apr 1981)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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